Will this work with my existing ISIS drive cranks? I'm trying to lighten the BB on my bike. What are my options?
No, probably not. Si cranks have a larger diameter spindle and the frames must be made for them. If your bike came with isis, I seriously doubt it's compatible, but what is the bike?
Without knowing much about your bike or style of riding, I'd say go with Shimano XTR, XT, or Race Face Deus for good lightweight cranks/ bb
My frame is a 2005 Cannondale F2000SL.
Sorry, you can't put a BB30 crankset on a 2005 F2000SL, the frame has a standard BB shell, not the bigger threadless BB30 specific shell.
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